In fact, the brewery industry generates various waste products, but these products can be exported to other industries and used for other purposes. For example, the rootlets that came out from the barley malting process can be collected and used to feed animals. Additionally, another product is the hops that came from spruce wort can be recycled again as a fertilizer for agriculture. Moreover, Vitamin B is high in the yeast that is already used in brewing processes, which then can be merchandised to other pharmaceutical industries to make supplements related to vitamin or food additive (American Brewer Column, 2007).